When I am portraying hallucinations of anxiety caused by verbal abuse, it includes both visual and auditory hallucinations. Shepard tone could be a practical method to create an illusion of change in pitch by varying the volume of the low and high pitch.
Author: Yiyi Chen
Full Metal Jacket (1987)
A clip from Full Metal Jacket (1987), a war film directed by Stanley Kubrick, best known for the abusive behaviour of Sergeant Hartman towards Leonard Lawrance aka Private Pyle. In the scene which Pvt. Pyle committed suicide after he killed Hartman, the buzzing noise of the background makes the whole scene more intense and depressive.